It's just like the 1960s with thousands of perfectly serviceable steam locomotives going off for scrap, often coming off their last train straight into the scrap sidings. A few hundred survive cared for by enthusiasts.
I see the same future for our classics.
At least bikes fit in small sheds and don't need rails.
Steam enthusiasts with loadsa land, patient partners and compliant neighbours were probably too few and far between for there to have been much chance for those beautiful creations. Some of us will have watched what Fred Dibnah did to his back garden in creating a steam emporium . . . but that's beyond most of us - and didn't go down too well with some folk, including Mrs D.
I'm less pessimistic than some, subject to the availability of fuel, and will continue to use unrestored oldies as daily transport for as long as I can. Afterwards, they may end up as static exhibits I suppose, and many may be lost, but is the vandalism gene so embedded in the modern version of us that we'd countenance the mass destruction of machinery just because it's obsolete? Perhaps it is, but I hope not.
As I won't be around to shed tears, I'm not going to worry too much, I'll just keep doing what I have always done for as long as I can, which is running around almost daily on whichever takes my fancy, and mending the things when they need a helping hand.
Just doing an engine swap for the upcoming winter on one bike (having sorted out a damaged bottom end on another one as I mentioned in 'what have you done with . . .'), so I can take its high-mileage motor apart for any TLC needed and park it on a shelf for when the next swap is needed. There's nowt much wrong with it, but best have a look before there's a major problem which might be expensive. And it's good to have things to do that keep a person out of harm's way in the house.